The Filter Cup Ring Nut ensures that the filter cup, which collects water and contaminants from the fuel, remains securely attached to the separator. By maintaining a tight seal, the ring nut prevents fuel leaks and contamination, which otherwise leads to engine performance issues and damage. The nut is torqued using a suitable tool to ensure proper fitment and secure attachment.Attributes:• Features a knurled surface for improved grip.• Provides a cushion to reduce impact on the filter cup.• Offers a non-slip gripped fastening to prevent movement.• Supports consistent pressure distribution across the filter cup.• Helps maintain filter cup alignment and seal integrity.Applications: The Filter Cup Ring Nut is positioned at the base of the filter cup to ensure that the filter cup of the fuel water separator remains securely attached and sealed.